Tray overturning and conveying device

Abstract

The utility model discloses a tray overturning and conveying device which comprises a first supporting seat, a second supporting seat, an overturning frame and a chain conveying assembly, the overturning frame comprises a first frame and a second frame, and the chain conveying assembly comprises a first chain, a first chain wheel, a second chain wheel, a third chain wheel, a fourth chain wheel, a fifth chain wheel, a tensioning chain wheel, a driven chain wheel and a driving shaft. The driven chain wheel is arranged on the driving shaft, the first chain wheel is arranged on the first connecting plate and corresponds to the position height of the driving shaft, the second chain wheel is arranged on the driving shaft and corresponds to the first chain wheel in a one-to-one mode, and the first chain sequentially passes through the first chain wheel, the second chain wheel, the tensioning chain wheel, the third chain wheel, the fourth chain wheel and the fifth chain wheel and then returns to the first chain wheel. The U-shaped closed-loop chain conveying structure is formed, the two ends of the tray are supported and enter and exit from the overturning frame through the U-shaped closed-loop chain conveying structure, the tray can be overturned upwards by 180 degrees along with the overturning frame, the structure is simplified, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pallet flipping and conveying technology, and in particular to a pallet flipping and conveying device. Background Technology

[0002] To improve welding efficiency, workpieces can be fixed on pallets and moved along the production line with them, where they are automatically welded by welding robots. During the welding process, the welding robots on the production line have difficulty covering the weld points on the bottom of the workpiece; therefore, the workpieces need to be flipped.

[0003] Because the workpieces are fixed on the pallet, their flipping needs to be synchronized with the pallet before they can be conveyed to subsequent welding or other workstations. The pallets are large, making flipping difficult. Furthermore, the workpieces need to be fed into the flipping equipment before flipping and then sent out of the equipment after flipping for continued circulation. Therefore, the flipping equipment typically has a complex structure, high maintenance costs, and requires improvement. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a pallet flipping and conveying device for pallet loading, unloading and flipping, which simplifies the structure and reduces costs.

[0005] To solve the above-mentioned technical problems, the present invention provides a pallet flipping and conveying device, comprising: a first support base, a second support base, a flipping frame, and a chain conveying assembly. The flipping frame is rotatably disposed between the first support base and the second support base. The flipping frame includes a first frame and a second frame, with the first frame arranged parallel above the second frame. The chain conveying assembly includes a first chain, a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, a fifth sprocket, a tension sprocket, a driven sprocket, and a drive shaft. A first connecting plate is disposed between the front ends of the first frame and the second frame, and a second connecting plate is disposed between the rear ends of the first frame and the second frame. The drive shaft is parallel to... The chain is positioned behind the second frame. The passive sprocket is mounted on the drive shaft. The first sprocket is mounted on the first connecting plate and corresponds to the height of the drive shaft. The second sprocket is mounted on the drive shaft and corresponds to the first sprocket. The tension sprocket is mounted on the second connecting plate and is located above the second sprocket. The third sprocket is mounted on the first connecting plate and is located in front of the tension sprocket. The fourth sprocket is mounted on the second connecting plate and is located below the front side of the tension sprocket. The fifth sprocket is mounted on the second connecting plate and is located below the fourth sprocket. The first chain passes through the first sprocket, second sprocket, tension sprocket, third sprocket, fourth sprocket and fifth sprocket in sequence and then returns to the first sprocket, forming a U-shaped closed-loop chain conveyor structure.

[0006] In a preferred embodiment of the present invention, the flipping frame is provided with a rotating shaft at both ends, and the first support base and the second support base are respectively provided with bearing seats corresponding to the rotating shaft.

[0007] In a preferred embodiment of the present invention, a reduction gearbox connected to the corresponding rotating shaft is provided on the outside of the first support base or the second support base, and a first motor is provided at the input end of the reduction gearbox.

[0008] In a preferred embodiment of the present invention, a third frame is vertically connected to the rear side of the first frame and the second frame, and a fourth frame is vertically connected to both ends of the first frame and the second frame. The first frame, the second frame, the third frame and the fourth frame form a tray inlet cavity with a front opening.

[0009] In a preferred embodiment of the present invention, an elastic stop is provided on the side of the third frame facing the tray inlet cavity.

[0010] In a preferred embodiment of the present invention, both ends of the drive shaft extend to the corresponding second connecting plate.

[0011] In a preferred embodiment of the present invention, the chain conveying assembly further includes a second motor and a drive sprocket. The second motor is disposed at the bottom of the second frame, and the drive sprocket is disposed on the second motor and a second chain is disposed between it and the driven sprocket.

[0012] In a preferred embodiment of the present invention, a side baffle is provided between the first connecting plate and the second connecting plate.

[0013] In a preferred embodiment of the present invention, the front end of the side baffle is provided with a guide plate that bends outward.

[0014] The beneficial effects of this utility model are as follows: The pallet flipping and conveying device disclosed in this utility model allows the pallet to enter the flipping frame along the assembly line. The pallet is supported at both ends and enters and exits the flipping frame through the U-shaped closed-loop chain conveying structure. After the pallet flips 180 degrees upward with the flipping frame, the U-shaped closed-loop chain conveying structure sends the pallet out of the flipping frame. The structure is compact and the operation and maintenance costs are low. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0016] Figure 1This is a schematic diagram of a preferred embodiment of the pallet flipping and conveying device of this utility model;

[0017] Figure 2 This is a bottom view of a pallet tilting and conveying device according to this utility model;

[0018] Figure 3 This is a schematic diagram of the U-shaped closed-loop chain conveyor structure in this utility model. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Please see Figures 1-3 The embodiments of this utility model include:

[0021] like Figure 1 The pallet flipping and conveying device shown includes: a first support base 1, a second support base 2, a flipping frame 3, and a chain conveying assembly. The flipping frame 3 is flipped between the first support base 1 and the second support base 2. The flipping frame 3 has a rotating shaft 35 at both ends. The first support base 1 and the second support base 2 are respectively provided with bearing seats 4 corresponding to the rotating shaft 35 to support the rotation of the rotating shaft 35.

[0022] A reduction gearbox 8 connected to the corresponding rotating shaft 35 is provided on the outside of the first support base 1 or the second support base 2. The input end of the reduction gearbox 8 is provided with a first motor, which can be rotated by a PLC to realize the 180-degree rotation of the tilting frame 3.

[0023] like Figure 1 As shown, the flipping frame 3 includes a first frame 31 and a second frame 32. In this embodiment, the first frame 31 and the second frame 32 are respectively adopted as planar square frame structures and are fixed by welding with square steel, so the structure is firm.

[0024] The first frame 31 is positioned parallel above the second frame 32. A third frame 33 is vertically connected to the rear of the first frame 31 and the second frame 32. A fourth frame 34 is vertically connected to both ends of the first frame 31 and the second frame 32. These frames can be fixed by welding, resulting in a robust structure. The first frame 31, the second frame 32, the third frame 33, and the fourth frame 34 form a tray inlet cavity with an open front end, which facilitates the tray's entry into the flipping frame 3 on the assembly line.

[0025] like Figure 2 and Figure 3As shown, the chain conveyor assembly includes a first chain 17, a first sprocket 11, a second sprocket 12, a third sprocket 13, a fourth sprocket 14, a fifth sprocket 15, a tension sprocket 16, a driven sprocket 6, a drive shaft 5, a second motor 9, and a driving sprocket 10. A first connecting plate 36 is provided between the front sides of both ends of the first frame 31 and the second frame 32, and a second connecting plate 37 is provided between the rear sides of both ends of the first frame 31 and the second frame 32. The first connecting plate 36 and the second connecting plate 37 can be fixed to both ends of the first frame 31 and the second frame 32 by welding or screws, thereby improving the structural stability of the first frame 31 and the second frame 32.

[0026] The drive shaft 5 is arranged parallel to the rear side of the second frame 32. In this embodiment, the two ends of the drive shaft 5 extend to the corresponding second connecting plate 37. Bearings can be installed in the second connecting plate 37 to provide rolling support for the drive shaft 5.

[0027] The passive sprocket 6 is mounted on the drive shaft 5, the second motor 9 is located at the bottom of the second frame 32, and the driving sprocket 10 is mounted on the second motor 9 with a second chain connecting it to the passive sprocket 6. This enables the second motor 9 to drive the passive sprocket 6. Furthermore, the second motor 9 is concealed at the bottom of the second frame 32, improving structural compactness and reducing the length of the tilting frame 3. The rotation of the second motor 9 can be controlled via a PLC, enhancing the level of automation.

[0028] The first sprocket 11 is mounted on the first connecting plate 36 and corresponds to the position and height of the drive shaft 5. The second sprocket 12 is mounted on the drive shaft 5 and corresponds one-to-one with the first sprocket 11. The tension sprocket 16 is mounted on the second connecting plate 37 and is located above the second sprocket 12. The third sprocket 13 is mounted on the first connecting plate 36 and is located in front of the tension sprocket 16. In this embodiment, the third sprocket 13 is also located directly above the first sprocket 11.

[0029] The fourth sprocket 14 is mounted on the second connecting plate 37 and positioned below and in front of the tension sprocket 16. The fifth sprocket 15 is mounted on the second connecting plate 37 and positioned below the fourth sprocket 14. The first chain 17 passes sequentially through the first sprocket 11, the second sprocket 12, the tension sprocket 16, the third sprocket 13, the fourth sprocket 14, and the fifth sprocket 15 before returning to the first sprocket 11. Figure 3 As shown, a U-shaped closed-loop chain conveyor structure is formed. The opening width of the U-shaped closed-loop chain conveyor structure is slightly larger than the thickness of both ends of the pallet. The pallet can smoothly enter and exit the U-shaped closed-loop chain conveyor structure. When the pallet enters the U-shaped closed-loop chain conveyor structure, it only contacts the lower part of the first chain 17 due to gravity. This ensures that the pallet can be fed into or out of the U-shaped closed-loop chain conveyor structure through the first chain 17. There is no need to install extra chains, which simplifies the structure and reduces costs.

[0030] like Figure 1 As shown, an elastic stop 7 is provided on the side of the third frame 33 facing the tray inlet cavity. After the tray enters the tilting frame 3, it is limited by the elastic stop 7 to prevent it from hitting the fourth sprocket 14. A displacement sensor connected to the PLC can also be installed in the tilting frame 3 to detect the displacement of the tray, which facilitates the control of the first motor and the second motor 9.

[0031] A side baffle 38 is provided between the first connecting plate 36 and the second connecting plate 37 to limit the two ends of the pallet and prevent deviation during the process of entering and exiting the tilting frame 3. The front end of the side baffle 38 is provided with an outwardly bent guide plate 39, which guides the pallet when it enters the tilting frame 3, corrects the pallet deviation, and ensures that the pallet enters the tilting frame 3 smoothly.

[0032] In summary, the pallet flipping and conveying device disclosed in this utility model can flip pallets and move them in and out of the flipping frame. It has a simple structure, a high degree of automation, and low operation and maintenance costs.

[0033] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pallet flipping and conveying device, characterized in that, include: The system comprises a first support base, a second support base, a tilting frame, and a chain conveying assembly. The tilting frame is rotatably disposed between the first and second support bases. The tilting frame includes a first frame and a second frame, with the first frame positioned parallel above the second frame. The chain conveying assembly includes a first chain, a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, a fifth sprocket, a tension sprocket, a driven sprocket, and a drive shaft. A first connecting plate is disposed between the front ends of the first and second frames, and a second connecting plate is disposed between the rear ends of the first and second frames. The drive shaft is positioned parallel to the rear of the second frame, and the driven sprocket is positioned on the drive shaft. On the drive shaft, the first sprocket is mounted on the first connecting plate and corresponds to the height of the drive shaft. The second sprocket is mounted on the drive shaft and corresponds one-to-one with the first sprocket. The tension sprocket is mounted on the second connecting plate and is located above the second sprocket. The third sprocket is mounted on the first connecting plate and is located in front of the tension sprocket. The fourth sprocket is mounted on the second connecting plate and is located below the front side of the tension sprocket. The fifth sprocket is mounted on the second connecting plate and is located below the fourth sprocket. The first chain passes through the first sprocket, the second sprocket, the tension sprocket, the third sprocket, the fourth sprocket, and the fifth sprocket in sequence and then returns to the first sprocket, forming a U-shaped closed-loop chain conveyor structure.

2. The pallet flipping and conveying device according to claim 1, characterized in that, The tilting frame is provided with a rotating shaft at both ends, and the first support base and the second support base are respectively provided with bearing seats corresponding to the rotating shaft.

3. The pallet flipping and conveying device according to claim 2, characterized in that, A reduction gearbox connected to the corresponding rotating shaft is provided on the outside of the first or second support base, and a first motor is provided at the input end of the reduction gearbox.

4. The pallet flipping and conveying device according to claim 1, characterized in that, A third frame is vertically connected to the rear side of the first frame and the second frame, and a fourth frame is vertically connected to both ends of the first frame and the second frame. The first frame, the second frame, the third frame and the fourth frame form a tray inlet cavity with a front opening.

5. The pallet flipping and conveying device according to claim 4, characterized in that, The third frame is provided with an elastic stop on the side facing the tray inlet cavity.

6. The pallet flipping and conveying device according to claim 1, characterized in that, The drive shaft extends to the corresponding second connecting plate at both ends.

7. The pallet flipping and conveying device according to claim 1, characterized in that, The chain conveyor assembly also includes a second motor and a drive sprocket. The second motor is located at the bottom of the second frame, and the drive sprocket is mounted on the second motor and connected to the driven sprocket by a second chain.

8. The pallet flipping and conveying device according to claim 1, characterized in that, A side baffle is provided between the first connecting plate and the second connecting plate.

9. The pallet flipping and conveying device according to claim 8, characterized in that, The front end of the side baffle is provided with a guide plate that bends outward.

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